On Thu, 31 Jan 2008, David Brownell wrote: > On Thursday 31 January 2008, Alan Stern wrote: > > The interesting difference lay in what Windows did when the Get-Max-LUN > > stalled. It sent a Clear-Halt request to endpoint 0! > > Yes that *is* strange! Considering that ep0 wasn't stalling ...
No, ep0 did stall (at least, that's the way it looks from the SnoopyPro trace and that's what happened under Linux). This was in response to the Bulk-only-transport class-specific Get-Max-LUN request. Devices are permitted not to support that request if they have only one LUN. Right now usb-storage responds to this stall by clearing the halt feature from the bulk-in and bulk-out endpoints, not because the spec says to do so but because one ancient device (a ZIP-100) requires it. Now it looks as though we've found a device which can't handle it. Time for another quirk? Alan Stern - To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
